Samsung SCH-A205 Service Manual page 45

9-4 Transmitter Circuit Diagram
+3.0IF
F402
ACZ1005M-152-T
C402 C403 C405 C406
C404
1NF 1NF
10NF 10NF
10NF
R401 100K,1%
+3.0IF_D
IFT3000-48BCCF-TR
TX_IQDATA(0:7)
TX_IQDATA(7) 18
TXD7
TX_IQDATA(6) 17
TXD6
TX_IQDATA(5) 16
TXD5
TX_IQDATA(4) 15
R403
TXD4
TX_IQDATA(3) 14
TXD3
8.2K
TX_IQDATA(2) 13
TXD2
TX_IQDATA(1) 12
TXD1
TX_IQDATA(0) 11
TXD0
TX_CLK 19
TX_CLK
20
_TX_CLK TX_CLK/
C409 1NF
35
TCXO TCXO
38
PD_OUT
37
PD_ISET
36
SYNTH_LOCK LOCK_DET
24
ADC_ENABLE
25
ADC_DATA
26
ADC_CLK
3
GND1
5
GND2
7
R405 R406 GND3
22 GND4
0 62K 39
GND5
44
GND6
48
GND7
10 GNDD
29
+3.0IF
TH401
NTH5G1M33B103J04TH
4.7K,1%
C418
33K,1% R415
22NF
R416
U402
MAX4599EXT-T
R417
R418
9.1K,1%
1.2K,1%
GND NC 4
V_F
3
V+ COM
2 5
_IDLE IN NO
1 6
H_DET
R419
91K,1%
V_BATT
C421
R420
22NF
100K,1%
PA_ON
J501
MHC-175
3705-001178
L501
ANT2 ANT1 12nH
OUT IN
2 1
L502 C502
1.5PF 1.5PF
SAMSUNG Proprietary - Contents may change without notice
+3.0IF_D
F401
ACZ1005M-152-T
C407
10NF
+3.0IF
U401
C408
10NF
8
L401 R402
VDD1 6
1uH 510
23
VDD2
40
VDD3
45
VDD4
VDD5 47
C431 C444
9
VDDM1 1NF
1NF
21
VDDM2
L402 R404
C443
41
1uH 510
FM_MOD
1NF
2 C433 C445
TXIF_OUT
1
TXIF_OUT/ 1NF
1NF
4
VCONTROL
43
TXVCO_T1
TXVCO_T2 42
34
SBCK_SEL2 ADC_CLK_SBCK
SBSK_IDLE/ 33
ADC_ENA_SBST
32
ADC_DATA_SBDT
SBDT_FM/
31
C411
SBI_EN
62PF
46
DNC
R407
C410 R408
R409 R411
28 27 30 47K,1%
8.2K
22NF
10K 12K,1%
+3.0IF_D
C416
R414
1NF
2.4K
C417
1UF
3.0VT
10V
R481
200K,1%
C481
10NF
C420
22NF
R482
5
1
1K
4 R484
200K,1%
3
U481
2
LMV821M7
C486
C483
C484 NC
1NF
150PF
Q481
2SK2035
C422
R490
R489
1NF
Q444
100K,1%
100K
MAX4599EXT-T
1
6
MODE_SEL
IN NO
2
5
+3.0IF
V+ COM
C432 3
NC 4
GND
1NF
RF_DUP
U491
MIC5205-3.0BM5/TR
1 5
V_DC IN OUT
C496
2
GND
C492 C494
100PF
REF_BYP
47NF 3 4
EN 100PF
C495
10NF
_IDLE
F443
ACZ1005M-152-T
C446
C447
10NF
1NF
L441
U441
12nH
RF2638TR13 F445
C449
D836LH L443
1 IF- 8
2PF
RFOUT
6.8nH
2 VCC 7 2 5
IF+ IN OUT
3 6
BYP G G G G
GND
L442
4 5 1 3 4 6
6.8nH
LO-
LO+
3.0VT
C442
C441
1NF
1NF
R457
62
C474
C475
100PF 47NF
C476
L403
L449 1NF
R458
27nH
8.2nH
56K
C412 L450
62PF
3 15nH
C413
1
C462
9PF
3PF
2
Q445
C466
R410 AT-32032-TR1
0.5PF
10K
R412 C414
270 R451
470PF
100K
F403 R455 C473
100K 10NF
ACZ1005M-152-T
R452
100K
5
1
4
3
2
U482
LMV821M7
TX_AGC_ADJ
C482
C467
22NF 150PF
R483
18K,1%
PDM1
R486
C485
10K,1%
100NF
R454
R453
1.8K,1%
47K
100K
R460
3
R456
1
PA_R0
1K,1%
2
3.0VT H_DET
C493
10UF
6.3V
CONFIDENTIAL
3.0VT
F444
ACZ1005M-152-T
C450
C448
1NF 1NF
U442 L444
8.2nH
MGA-72543-TR1
F446
C453
3 IN 1 D836MH
GND.C
6PF
4 2
GND OUT IN
C452 2
G
1PF
1 3
R444
22
C457
C455 C456 C451
C454
NC 1NF
100PF NC
100PF
Q442
D 3 2SK2035
1
G
C479
S 2
100PF
C458
TX_1ST_LO
NC
Q441
FDG6323L
V.C1-2
VIN,R1
4 3
R443
R445
100 V.C1-1
5 ON/OFF 2
100K
C460 C461
3.0VT
R2
R1,C1 1UF 150PF
6 1
10V
3.0VT
PA_ON V_BATT
Q483
2SA1576FRT106
R450
C472 C465
10K 1UF
2 100PF
1
10V
3
3.0VT
U445
AD8314ARM-REEL7
8 1
VPOS RFIN
7 2
V_DN ENBL
C470 6 V_UP 3
VSET
10NF
5 4
COMM FLTR
R447 R448
1K 51
C471
10NF
R449
1K
C459
100PF
OUT
5
G G G
L445
4 6
NC
PA_R0
U443
RM912
2
RFIN
G
6
3 LABEL 7
VREF
8
G
1 VCC1 9
G
10
G
4 11
VCC2 G
12
G
RFOUT
5
C463
150PF
50V
C464
150PF
C469
NC
R459
2.7nH
C477
2PF
R446
F448
12K
CE053R836DCA
TX_OUT
9-4